Burner and generator



Nov. 17, 1925 L.. c. .JOHNSON BURNE R AND GENERATOR Filed Feb. 11, 1922 Y www Y w und l v ner that it may commingle with oil placed in l Patented Novi Y17, 1925.

UNITED STATES LEO c. JOHNSON, or DETROIT, MI'OHGAN.

BURNER AND GENERATOR. i u

Application filed February 11, 1922. Serial No. 535,679.

To all whom it may concern.'

Be it known that I, LEO C. JOHNSON, a

citizen of the United States of America, re-

siding at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Burners and Generators, of which the following is a specication, reference being had therein to the accompanying drawings.

My invention aims to provide a burner in which steam, gas and oil may be utilized as a fuel to'produce a flame of caloric value, the burner converting water into steam and the steam saturated with oil or mixed with vaporized oil so as to increase the products of combustion and provide a flame of greater intensity than if oils alone were burned.

My invention further aims to provide a liquid fuel burner in which steamis generated .and supplied 'to the burner in such a mana highly heated or vaporized condition.

My invention still further aims to provide a burner having a combustion chamber surrounded by enerating chambers, one or both being utilized as a fuel to commingle with steam generated from water heated by v the gas. A very simple burner construction is used and a perfect combustion of fuel inf sured, and'the construction of the burner will be hereinafter specifically described and then claimed.

Reference willnow be had to the drawings, whereing Fi'g. 1 is a vertical sectional view Of a gas burner;

Fig. 2 is a similar view' illustrating an oil burner somewhat along the lines of the gas burner construction;

Fig. 3 is a plan of the oil burner; Fig. 4 is an elevation of a portion of the same partly broken away, showing a jet' in section.

The gas burner comprises a tubular casing 39 provided with a. valved gas jet 40.

The outer walls of the casing 39, at the outer' end thereof, have a spiral groove 41 to receive a spiral thread 42 on the inner wall of a housmg 43, said housing being screwed on the casing just as though the housin'g and casing vwere in full screw-threaded en# gagement with each other, that is, the thread 42 fully meshing with the thread on the casing, whereas, 1n reality, the thread 42 1s but providing y'a spiral chamber, 44 about the endof the casing It is thought that the operation and utilitypartially engaged by the casing 1 thus casing 39, said-spiral chamber being formed by walls of they casing and walls ofthe thread 42. Communicating with the inner end of the chamber 44 is a `gooseneck steam jet'45 extending into the inner end of the casing 39 and axially thereof, and oommunieating with the outer end of the chamber 44 is a valved water supply pipe 46. -The ends of the housing 43 are suitably sealed or closed relative to the casing 39, as, at such places indicated 47. With this type of burner the water passing around the 'walls of the casing 39 is heated and converted into steam and the steam commingles with the gas to insure better combustion in the Outer y end of the burner casing.

4 Considering Figs. 2, 3v and 4, the oca'sin 48 has a double spiral groove for the threa 49 'of the housing 50, said thread lcooperatin with the casing 48 in providing two spiral chambers v51 and 52. The\ spiral chamber 51 communicates with a valved oil supply pipe 53 at theouter end of the burner, and communicating with the inner end of the chamber 51 is an oil pi e 54 provided with a jet 55 axially of t e casing 48. This jet has a configuration which directs -oil towards both ends ofthe casing 48.

Communicating with the outer end of the chamber -52 is a water supply pipe 56 and communicating with the inner end of said chamber is a gooseneck steam jet .57 extending into the inner end of the casing 48 to discharge steam axially thereof, the steam meeting the oil from the inner end of a nozzle 55. The housing 50 i's sealed on the casing 48 at such places designated 58.

It 1s apparent that the devicel functions as a generator, insomuch that liquid fuel is converted into va gaseous fuel, and the steam contributes to combustion with a flame of high caloric intensity emitted from the outer ofv my burner will be apparent without further description, and whlle in the drawings there is illustrated a preferred embodiment 'of my invention, itis to be understood that the structural elements are susceptible to such variations and`modifications as fall within the scope 'of the appended claims.

What I claim is l v 1. A burner comprising' a casing, a housing screwed on an vend of said casing with the threads of thehousing of greater depth than the threads of thecasing so thatv lthe walls'of the housing. threads will co-operate with said casing in providing a water receiving chamber, a steam jet in saidI casing communicating with said water chamber, and a' fuel jet in saidcasing.

2. A burner as in claim 1, wherein the .housing provides two chambers, one as set forth for water, and the other chamber adapted to receive the fuel which supplies the fuel jet.

3. A. burner comprising a. casing, a housing screwed on said casing providing independent water and fuel chambers adapted to receive water and fuel, a steam jet in said casing communicating with the water chamber, and a'fuel jet in said casing communicating with the fuel chamber.

4. A. burner comprising a casing having a combustion chamber 1n its outer end, a f' housing surrounding the outer end of said casing and providing helical chambers in which water and fuel may be heated by conduction from the walls of the casing to place the water and fuel in a combustible condition, the convolutions of'one chamber alternating with the convolutions of the other chamber, and jets axially of said casing communicating with the water and fuel chambers of said housing.

5,'. The combination wlth an open end casing, said casing having a helical groove in ducing a partial, vacuum in one end of saidv casing so that air will be drawn therein to communicate with the gaseous lfuel ignited within said casingf 6. A fuel generating chamber for a burner, said chamber being formed-between a casing and a housing in screw threaded 'engagement therewith, the walls of the housing threads cooperating with the walls of the casing in forming the chamber.

7. In a burner. wherein ignited fuel is adapted to heat a chamber in which the fuel 1 or ingredients thereof are heatedpreparatory to ignition, a helical chamber formed by walls, one of which is grooved andthe other provided with screw threads extend ing into'the wall grooves with the walls of theV screw threads cooperating with the grooved wall in forming the chamber.'

`In testimony whereof I aiiix my signature.

LEO C.. JOHNSON. 

